Manufacture of building-blocks.



Ul U55 [1616! 61166 UNITED strains liZI/ PATENT OFFICE.

CONRAD KilBTLING CARL JAENTSCH, OF CASSEL, GERMANY.

MANUFACTURE OF BUILDING-BLOCKS.

No Drawing.

To all whom it may concern:

Be it known that we, CONRAD Konrnmo and CARL JAENTSCH, both subjects ofthe German Emperor, and residents of 3 Hedwigstrasse and 37Weibergstrasse, respectively, Cassel, Germany, have invented certain newand useful Improvements in the Manufacture of Building-Blocks, of whichthe following is a specification.

This invention relates to the manufacture of building blocks from peat.

Hitherto bricks have been made by reducing peat to a pulp or to fibersand adding agglutinants so as to form a moldable mass from which thebricks are molded, the wholebein closely united by pressure. Peat hasalso een rendered fit for many useful purposes by submitting it to asteeping process 1n compositions adapted to ren er it elastic andfirgproof. It has also been pressed and dried and mixed with water-glassand then further com ressed so as to form a hard material out 0 whichboxes can be made.

According to the resent invention, building blocks are ma e byimpregnating unpressed pieces of peat with a solution of water-glass,and according to another phase of the invention, building blocks'aremade from un ressed pieces of peat b coatin them with a layer of ansultable e-proo ing material, the centra ortion of the peat remainingunaltered. ater-glass may be employed to form this coating.

According to the first phase of the invention, the eat which is outdirectly out of the soil w1 on being pgessed added, is saturated, afterbeing me W1 a so u -1on of waterlass and the pea 1s then allowed tom 651s solution of water-glass may vary. hus, soda water-glass, potashwaterin either way any kind of mortar may be Specification of LettersPatent.

Application filed April 1, 1909. Serial No. 487,295.

Patented May 10, 1910.

used, but a mixture of waterlass with a hydraulic material, such asRoman or Portor saturated with a solution of water-glass is effected.

A wall made of these bricks is a perfect substitute for any loam orplaster wall or wall formed of plaster of paris with reinforcingwire-work, and nails can be driven into it; and it has moreover theadvantage of not conducting sound and of being a bad conductor of heat,as the brick remains porous. A further and very important advantage isthat bricks thus impregnated are fireroof and are not destroyed evenunder the influence of the greatest heat. Such bricks are particularlysuitable for outside walls of small one-storied buildings as they arenot affected by the weather. But partition walls and floors or ceilings,and especially intermediate layers in ceilings and walls, can also bemade with them very advantageously. They can likewise be used formaking'building plates or slabs of a rather large size, as their weightis exceedingly small.

What we claim is l. A process of manufacturing building blocks, whichcomprises the impregnation of unpressed blocks of peat with a solutionof water-glass.

2. A process of manufacturing buildin blocks, which comprises coatingunpressed blocks of peat with a layer of water-glass, the centralportion of the peat block remaining unaltered.

3. A building block consisting of an unpressed block of peat impregnatedwith water-glass.

4. A building block consisting of an unpressed block of peat providedwith a coating of fire-proofing material, the central portion of theblock remaining in its natural condition.

In testimony whereof we have hereunto signed our names this 22d day ofMarch 1909, in the presence of two subscribing witnesses.

CONRAD KClRTLING. CARL J AENTSCH.

Witnesses EMANUEL Somanz,

- ERNST Knnssr.

: Lxamine;

